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GeForce GTX 780 Ti vs Nvidia Titan X

Intro

The GeForce GTX 780 Ti features core speeds of 875 MHz on the GPU, and 1750 MHz on the 3072 MB of GDDR5 RAM. It features 2880 SPUs along with 240 TAUs and 48 Rasterization Operator Units.

Compare those specs to the Nvidia Titan X, which comes with GPU clock speed of 1417 MHz, and 12288 MB of GDDR5X memory running at 1251 MHz through a 384-bit bus. It also is made up of 3584 SPUs, 224 Texture Address Units, and 96 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

The Nvidia Titan X should in theory perform a small bit faster than the GeForce GTX 780 Ti in general. (explain)

Nvidia Titan X 393216 MB/sec
GeForce GTX 780 Ti 336000 MB/sec
Difference: 57216 (17%)

Texel Rate

The Nvidia Titan X will be much (more or less 51%) better at texture filtering than the GeForce GTX 780 Ti. (explain)

Nvidia Titan X 317408 Mtexels/sec
GeForce GTX 780 Ti 210000 Mtexels/sec
Difference: 107408 (51%)

Pixel Rate

If using a high screen resolution is important to you, then the Nvidia Titan X is the winner, by far. (explain)

Nvidia Titan X 136032 Mpixels/sec
GeForce GTX 780 Ti 42000 Mpixels/sec
Difference: 94032 (224%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Display Prices

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GeForce GTX 780 Ti

Amazon.com

Nvidia Titan X

Amazon.com

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

Display Specifications

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Model GeForce GTX 780 Ti Nvidia Titan X
Manufacturer nVidia nVidia
Year November 2013 August 2016
Code Name GK110 GP102-400
Memory 3072 MB 12288 MB
Core Speed 875 MHz 1417 MHz
Memory Speed 7000 MHz 10008 MHz
Power (Max TDP) 250 watts 250 watts
Bandwidth 336000 MB/sec 393216 MB/sec
Texel Rate 210000 Mtexels/sec 317408 Mtexels/sec
Pixel Rate 42000 Mpixels/sec 136032 Mpixels/sec
Unified Shaders 2880 3584
Texture Mapping Units 240 224
Render Output Units 48 96
Bus Type GDDR5 GDDR5X
Bus Width 384-bit 384-bit
Fab Process 28 nm 16 nm
Transistors 7080 million 12000 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 12.0
OpenGL Version OpenGL 4.4 OpenGL 4.5

Memory Bandwidth: Bandwidth is the largest amount of information (measured in megabytes per second) that can be transported past the external memory interface in a second. It is calculated by multiplying the interface width by its memory speed. If it uses DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This number is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

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